Loose-leaf book.



J. W. MYATT.

LOOSE LEAF BOOK.

APPLICATION FILED JAN.23. 19H.

Patented July 10,1917.

2 5HEETS-SHEET 1 Patented July 10, 1917.

2 SHEETS-SHEET 2- Fig.5

ATTOR/VEXJ .UNITED @TATE% 'PATENT @FFIQE.

JOI-IN WILLIAM MYATT, 0F TIPTON, ENGLAND, ASSIGNOR T0 LEDGERS LIMITED,OF

TIP'I'ON, ENGLAND.

LOOSE-LEAF BOOK.

Specification of Letters Patent.

Application filed. January 23, 1917. Serial No. 144,080.

To all whom it may concern:

Be it known that I, JOHN WILLIAM MYATT, a subject of the King 'of GreatBritain and Ireland, residing at 37 V1ctoria road, Tipton, in the countyof Stafford, England, have invented certain new and useful ImprovementsRelating to Loose- Leaf Books, of which the following isa specification.

This invention relates to loose leaf books or binders of the type inwhich telescoplc members are employed between a pair of clamping barsfor the attachment of the leaves, the object of the invention being toprovide an improved construction which permits a greater extension ofthe sald members than those ordinarily employed.

This invention comprises the combination of three or more telescopicmembers, and an internally arranged cable which is attached to themiddle member or one of them when more than three are used, enlargementsbeing provided on the ends of the cable to limit the extensibility.

Referring to the two accompanying sheets of explanatory drawings Figure1 is a perspective vlew of aloose leaf book or binder provided with this1nvention. a

Fig. 2 is a cross section of the back of the binder through one of thetelescopic members, the latter being shown closed, and Fig. 3 is asimilar view showing the sa1d members extended.

Fig. 4: is a cross section of the back of the binder through one of theconnecting screws by which the clamping bars are drawn together.

Fig. 5 is a plan of the back of the blnder.

In the construction of a loose leaf book or binder in accordance withthis invention, a pair of hollow clamping bars a on each of which ahinged cover I) may be provided have attached to them two or more setsof telescopic rigid tubular members 0 preferably of metal to which theleaves are attached. Screw connecting posts 0? of any convenient formare also provided between the bars for securing them together andexerting the required clamping action on the leaves. In the form shown,each set of telescopic members comprises three parts arranged to nest orslide together, the outer one being fastened at one end to one of theclamping bars and the inner one fastened at the opposite end to theother clamping bar. Within the said members is arranged a connectingcable a which may consist of a length of wire, leather thong or othersuitable means. The ends of the cable are formed or provided withenlargements 7 to limit the extension of the members. One of theenlargements abuts against a flange f at the inner end of the inner tubeand the other abuts against the clamping bar as shown in Fig. 3 when themembers are extended. Also the intermediate tubular member is secured tothe cable by the collar f brazed or soldered to the cable and to one endof said member, so that such telescopic member is unable to becomedetached from the other members. When the telescopic members are closedtogether one end of the cable bends over and slides within the clampingbar; the other lies in the inner tube. Any ordinary mechanism arrangedin one of the clamping bars is employed to operate the screw connectingposts, such, for example, the skew or spiral gears d and C22 and keystem d In the form shown the inner screw is fixed to one of the bars andthe other which is attached to the other bar is rotatable by the saidmechanism. When the telescopic parts are fully extended the parts of thescrew connecting posts are separated from each other. Two such posts areshown and these are situated between the telescopic members, but anyother arrangement may be adopted.

By this invention a large amount of extensibility can be provided forand in any position a rigid support is obtained for the leaves duringthe changing operation.

When more than three telescopic members are used the cable is attachedto one of the middle ones and any suitable provision is made to preventdisconnection of the others.

Having thus described my invention what I claim'as new and desire tosecure by Letters Patent is 1. In loose leaf books or binders, thecombination with a pair of clamping bars, of a plurality of telescopicmembers, an internally arranged cable attached to an intermediarymember, and stops on the ends of the cable, substantially as described.

2. In loose leaf books or hinders, the combination with a pair ofclamping bars, of a plurality of telescopic members, the outer and innerone of which are respectively se Patented July 10, I917.

cured to the said bars, an internally arranged cable attached to anintermediate member, a stop on one end of the cable coacting with one ofthe bars, and a stop on the other end of the cable co-acting With theinner telescopic member, substantially the inner one flanged internallyat its outer end, a cable attached to the middle member, a stop on oneend of the cable co-acting With one of the bars, and a stop onthe otherend of the cable co-acting with the flangeonthe inner member,substantially as described.

Copies of this patent may be obtained for 4. In loose leaf books orbinders, the combination comprising a pair of hollow clamping bars oneof which contains clamping mechanism, a pair of internally screwed postsattached to one of the bars and rotatable by the said mechanism, a pairof screws secured to the other bar and arranged to detachably engage theposts, a plurality of sets of telescopic members the inner and outerones of which are respectively secured to the two bars, an internallyarranged cable attached to an intermediary member and adapted to slidein and out of one of the bars, and stops on the ends of the cable,substantially as described.

In testimony whereof I have signed my name to this specification.

' JOHN WILLIAM MYATT.

five cents each, by addressing the Commissioner of Patents. Washington,D. G.

